CN208779121U - A kind of liquefied natural gas vacuum insulation heat insulated tank - Google Patents
A kind of liquefied natural gas vacuum insulation heat insulated tank Download PDFInfo
- Publication number
- CN208779121U CN208779121U CN201821270008.XU CN201821270008U CN208779121U CN 208779121 U CN208779121 U CN 208779121U CN 201821270008 U CN201821270008 U CN 201821270008U CN 208779121 U CN208779121 U CN 208779121U
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Abstract
The utility model relates to a kind of liquefied natural gas vacuum insulation heat insulated tanks, tank deck, tank skin, tank bottom including being in vertical setting；The tank deck, tank skin, tank bottom include heat insulating material for external, outer layer plate and inner layer steel plate, and the filled layer vacuumized is provided between the outer layer plate and inner layer steel plate；Helical form diversion trench is additionally provided with inside the filled layer of the tank skin, the helical form diversion trench is open curved pipe, its cross section into semicircle；The filled layer of the tank deck, tank skin and tank bottom is interconnected；The tank deck is provided with the outlet with solenoid valve；The filling access being connected to filled layer is provided with below the tank deck, tank bottom top is provided with filling outlet, the tank skin and the tank bottom junction being connected to filled layer and is provided with annular filter screen；The heat insulating material for external includes aluminium foil layer, phenol formaldehyde foam layer and impervious barrier.The storage tank of the utility model has the advantages that charging efficiency height, good heat insulating.
Description
Technical field
The utility model relates to LNG storage pressure vessel technology of preparing more particularly to a kind of liquefied natural gas
Vacuum thermal insulation storage tank.
Background technique
Adjustment with national new energy and the raising to environmental protection requirement, natural gas using more and more extensive, make
Liquefied natural gas for clean energy resource is by the liquified natural gas for the processing formation that purifies and liquefy, and main component is methane, is led to
Often it is stored in LNG low-temperature storage tank, since LNG storage temperature is low, storage tank cold insulation is the important component in tank structure,
At present, small-sized storage tank thermal insulation generallys use pearlife filling heat preservation and high vacuum multi-lay winding Insulation, and pearly-lustre
Sand is more extensive as storage tank cold insulation measure.
Traditional filling sand process takes a long time, and needs repeatedly to fill circulation and compaction cycle, until in filled layer not
Until pearlife capable of being refilled.
Utility model content
In order to solve the above-mentioned technical problem, provide it is a kind of can be improved filling rate and heat insulation effect it is good natural gas it is true
Empty adiabatic heat-insulation storage tank, the utility model the following technical schemes are provided:
A kind of liquefied natural gas vacuum insulation heat insulated tank, tank deck, tank skin, tank bottom including being in vertical setting；The tank
Top, tank skin, tank bottom include heat insulating material for external, outer layer plate and inner layer steel plate, between the outer layer plate and inner layer steel plate
It is provided with the filled layer vacuumized, is filled with pearlife in the filled layer；Be additionally provided with inside the filled layer of the tank skin with
The helical form diversion trench that outer layer plate inner surface is fixedly connected, the helical form diversion trench is open curved pipe, its is transversal
Face is at semicircle and it is not contacted with inner layer steel plate；The tank deck and tank skin are integrally formed, the tank bottom and tank skin assembly connect
It connects, and the filled layer of the tank deck, tank skin and tank bottom is interconnected；The tank deck is provided with the outlet with solenoid valve；It is described
The filling access being connected to filled layer is provided with below tank deck, tank bottom top is provided with the filling being connected to filled layer and goes out
Mouth, the tank skin and tank bottom junction are provided with annular filter screen；The heat insulating material for external include aluminium foil layer, phenol formaldehyde foam layer and
Impervious barrier.
The pearlife of the utility model is in stowing operation, since the presence of helical form diversion trench can play pearlife
Guide functions, to accelerating fill rate, can also prevent from reuniting because of pearlife to a certain extent influences in steel plate inner wall
Filling process；The tank skin of the utility model with tank deck is filled simultaneously, tank bottom is independently filled.
Further, the helical form diversion trench slot bottom offers equidistant through-hole, can further speed up pearlife
Flow velocity.
Further, the inner layer steel plate outer surface is also equipped with one layer of impervious barrier, and two layers of impervious barrier of setting can ensure
Liquefied natural gas does not generate leakage.
Further, the distance of the helical form diversion trench to inner layer steel plate is greater than 8mm, if helical form diversion trench and internal layer
Steel plate hypotelorism is easy to influence insulation effect.
The utility model has the beneficial effects that: pearlife filling can be significantly improved by the setting of helical form diversion trench
Efficiency；It can ensure the anti-seepage effect of storage tank by the setting of two layers of impervious barrier；It on the one hand can by the setting of phenol formaldehyde foam
Play the role of heat-insulation and heat-preservation jointly with aluminium foil, on the other hand can also play the role of shock resistance, antivibration buffering.
Detailed description of the invention
The primary structure schematic diagram of Fig. 1, the utility model；
Fig. 2, the utility model heat insulating material for external schematic diagram of a layer structure；
Fig. 3, the utility model helical form diversion trench cross-sectional view；
In figure: 1, tank deck, 11, outlet, 12, filling access, 2, tank skin, 3, tank bottom, 31, filling outlet, 41, external thermal insulation material
Material, 411, aluminium foil layer, 412, phenol formaldehyde foam layer, 413, impervious barrier, 42, outer layer plate, 43, inner layer steel plate, 5, filled layer, 6, spiral shell
Revolve shape diversion trench, 7, annular filter screen.
Specific embodiment
A kind of liquefied natural gas vacuum insulation heat insulated tank as shown in Figs. 1-3, tank deck 1, tank including being in vertical setting
Wall 2, tank bottom 3；The tank deck 1, tank skin 2, tank bottom 3 include heat insulating material for external 41, outer layer plate 42 and inner layer steel plate 43, institute
The filled layer 5 for being provided with and vacuumizing between outer layer plate 42 and inner layer steel plate 43 is stated, is filled with pearlife in the filled layer 5；
The helical form diversion trench 6 being fixedly connected with 42 inner surface of outer layer plate is additionally provided with inside the filled layer 5 of the tank skin 2, it is described
Helical form diversion trench 6 is open curved pipe, its cross section at semicircle and it is not contacted with inner layer steel plate 43；The tank
Top 1 and the integrated molding of tank skin 2, the tank bottom 3 and 2 assembly connection of tank skin, and the filled layer 5 of the tank deck 1, tank skin 2 and tank bottom 3
It is interconnected；The tank deck 1 is provided with the outlet 11 with solenoid valve；It is provided with below the tank deck 1 and is connected to filled layer 5
The filling outlet 3111 being connected to filled layer 5 is provided with above filling access, the tank bottom 3, the tank skin 2 is connect with tank bottom 3
Place is provided with annular filter screen 7；The heat insulating material for external 41 includes aluminium foil layer 411, phenol formaldehyde foam layer 412 and impervious barrier 413.
The flow velocity that 6 slot bottom of helical form diversion trench offers equidistant through-hole, can further speed up pearlife, this
Through-hole aperture in embodiment can choose 2-4mm, and 6 cell wall of helical form diversion trench in the present embodiment can be coated with polytetrafluoro
Vinyl film.
43 outer surface of inner layer steel plate is also equipped with one layer of impervious barrier 413, and two layers of impervious barrier 413 of setting can ensure liquid
Change natural gas and does not generate leakage.
The distance of the helical form diversion trench 6 to inner layer steel plate 43 is 10mm, if helical form diversion trench 6 and inner layer steel plate 43
Hypotelorism is easy to influence insulation effect.
The pearlife of the utility model is in stowing operation, since the presence of helical form diversion trench 6 can play pearlife
To guide functions, to accelerating fill rate, can also prevent shadow due to pearlife is reunited in steel plate inner wall to a certain extent
Ring filling process；The tank skin 2 and tank deck 1 of the utility model are filled simultaneously, tank bottom 3 is independent fills.
It is enlightenment, through the above description, relevant staff with above-mentioned foundation the utility model desirable embodiment
Completely various changes and amendments can be carried out in the range of without departing from this item utility model technical idea.This item is practical
Novel technical scope is not limited to the contents of the specification, it is necessary to determine that its is technical according to scope of the claims
Range.
Claims (4)
1. a kind of liquefied natural gas vacuum insulation heat insulated tank, it is characterised in that: tank deck, tank skin, tank including being in vertical setting
Bottom；The tank deck, tank skin, tank bottom include heat insulating material for external, outer layer plate and inner layer steel plate, the outer layer plate and internal layer
It is provided with the filled layer vacuumized between steel plate, is filled with pearlife in the filled layer；Inside the filled layer of the tank skin also
It is provided with the helical form diversion trench being fixedly connected with outer layer plate inner surface, the helical form diversion trench is open arc
Pipe, its cross section are at semicircle and it is not contacted with inner layer steel plate；The tank deck and tank skin integrated molding, the tank bottom and tank
Wall assembly connection, and the filled layer of the tank deck, tank skin and tank bottom is interconnected；The tank deck is provided with going out with solenoid valve
Mouthful；It is provided with filling access be connected to filled layer below the tank deck, tank bottom top is provided with and is connected to filled layer
Filling outlet, the tank skin and tank bottom junction are provided with annular filter screen；The heat insulating material for external includes aluminium foil layer, phenol formaldehyde foam
Layer and impervious barrier.
2. a kind of liquefied natural gas vacuum insulation heat insulated tank as described in claim 1, it is characterised in that: the helical form is led
Chute slot bottom offers equidistant through-hole.
3. a kind of liquefied natural gas vacuum insulation heat insulated tank as described in claim 1, it is characterised in that: the inner layer steel plate
Outer surface is also equipped with one layer of impervious barrier.
4. a kind of liquefied natural gas vacuum insulation heat insulated tank as described in claim 1, it is characterised in that: the helical form is led
The distance of chute to inner layer steel plate is greater than 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270008.XU CN208779121U (en) | 2018-08-08 | 2018-08-08 | A kind of liquefied natural gas vacuum insulation heat insulated tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270008.XU CN208779121U (en) | 2018-08-08 | 2018-08-08 | A kind of liquefied natural gas vacuum insulation heat insulated tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208779121U true CN208779121U (en) | 2019-04-23 |
Family
ID=66156109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821270008.XU Active CN208779121U (en) | 2018-08-08 | 2018-08-08 | A kind of liquefied natural gas vacuum insulation heat insulated tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208779121U (en) |
-
2018
- 2018-08-08 CN CN201821270008.XU patent/CN208779121U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 No. 383 Changhong East Road, Wujin District, Changzhou City, Jiangsu Province Patentee after: Jiangsu Shengwei Gas Technology Co.,Ltd. Address before: 213000 No. 383 Changhong East Road, Wujin District, Changzhou City, Jiangsu Province Patentee before: JIANGSU SUNWAY FILTER Co.,Ltd. |